Kualitas Sungai Air Hitam Bagian Hilir Kota Pekanbaru Provinsi Riau Pada Kond…

ABSTRACT The purpose of the study was to determine the quality of water in Air Hitam River at the tide and low conditions. Sampling is carried out as many as three times with a time interval of once every month for three months. Sampling is carried out at high tide and low tide based on the application of world tide software to estimate the tide. Water quality measurements are temperature, sal…